Basic.css - Classless CSS Starter File

femtoJS - Really small JavaScript (ES6) library for DOM manipulation

Infinity CSS Grid

Flex One - 1 CSS Class System

Scribble Font for Prototyping & Wireframing

Show HN: Simple CSS Button

Katana.scss Minimal CSS Layout System Made with Flexbox

60GS - CSS Grid Layout

SMART CSS GRID

nanoJS - Minimal standalone JS library for DOM manipulation